Can someone explain this (4+5) + 2=9+2

Solve this problem using the above process. A rectangular field is 4 times as long as it is wide. If the length is decreased by 10 feet and the width is increased by 2 feet, the perimeter will be 80 feet. Find the dimensions of the original field.

If you have 5 signal flags and you can send messages by hoisting one or more flags on a flagpole how many messages can you send

A nearby pool holds 30,000 gallons. The pool has been filled with 19,500 gallons of water. If the variable w stands for the amount of additional water the pool can hold, which of the following would be a reasonable value for this variable?

What are the missing terms in this sequence: __, 4, __, __, 13 1, 7, 10 2, 6, 9 0, 8, 11

Alyssa is preparing her grocery list for the week. She wants to have a smoothie for breakfast every day and plans on a total of 6 cups of smoothies made from frozen fruit puree and yogurt. Knowing that fruit puree costs $2.

A baseball is thrown from the top of a building and falls to the ground below. The height of the baseball above the ground is approximated by the relation h =

What is (-4,4) reflected on the x-axis

What is 8x+4=20?

Evaluate the following expression. 2- ³

4-3|h|=-20 How do i solve for h?